Created
November 2, 2018 11:26
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Forward web traffic to backend server
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| #!/bin/bash -e | |
| PROXY=$(curl -s ipinfo.io/ip) | |
| BACKEND="(dig +short example.com) | |
| set -x | |
| iptables -t nat -F | |
| iptables -t nat -A PREROUTING -p tcp --dport 80 -d $PROXY -j DNAT --to $BACKEND:80 | |
| iptables -t nat -A PREROUTING -p tcp --dport 443 -d $PROXY -j DNAT --to $BACKEND:443 | |
| iptables -t nat -A POSTROUTING -d $BACKEND -j MASQUERADE | |
| echo 1 > /proc/sys/net/ipv4/ip_forward |
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